Update bind_tcp sizes to dynamic

This is required due to the fact that we can now turn on/off the
closing of the listen socket.

modules/payloads/stagers/linux/x86/bind_tcp.rb

@@ -10,7 +10,7 @@ require 'msf/core/payload/linux/bind_tcp'
 
 module Metasploit4
 
-  CachedSize = 79
+  CachedSize = :dynamic
 
   include Msf::Payload::Stager
   include Msf::Payload::Linux::BindTcp

modules/payloads/stagers/windows/bind_tcp.rb

@@ -10,7 +10,7 @@ require 'msf/core/payload/windows/bind_tcp'
 
 module Metasploit4
 
-  CachedSize = 285
+  CachedSize = :dynamic
 
   include Msf::Payload::Stager
   include Msf::Payload::Windows::BindTcp

modules/payloads/stagers/windows/x64/bind_tcp.rb

@@ -10,7 +10,7 @@ require 'msf/core/payload/windows/x64/bind_tcp'
 
 module Metasploit4
 
-  CachedSize = 467
+  CachedSize = :dynamic
 
   include Msf::Payload::Stager
   include Msf::Payload::Windows::BindTcp_x64

modules/payloads/stagers/windows/x64/reverse_tcp.rb

@@ -10,7 +10,7 @@ require 'msf/core/payload/windows/x64/reverse_tcp'
 
 module Metasploit4
 
-  CachedSize = 422
+  CachedSize = :dynamic
 
   include Msf::Payload::Stager
   include Msf::Payload::Windows::ReverseTcp_x64